\abstract{
In the last years, amateur astronomers has seen the development of several different applications that helps them. These applications range in quality and features but as a common denominator they are usually designed for human-only users. In this paper we present StarGazer, an assistant for amateur astronomers. This application uses semantic technologies and was developed using good practices. The former allows StarGazer to interoperate with others in the context of the Semantic Web, while the latter allows us to extend the functionalities in a comprehensible way. In order to fulfill our requirements, we also developed an ontology focused in amateur astronomy, particularly in star-related information. We present a description of StarGazer as an application, as well as a description of the ontology described above.}

%In our knowledge, this is the first application of its kind, applying semantic information to amateur astronomy.
